break off
phrasal verbbreak off
to become separated from something as a result of force 断开;折断 to stop speaking or stop doing something for a time 停顿;中断 He broke off in the middle of a sentence. 他一句话说了一半就不说了。 He broke off abruptly when Jo walked in. 乔走进来时,他突然停住不说了。 - break off from something
She broke off from the conversation to answer the telephone. 她停止交谈去接电话。
break something off